package com.anjubao.parking.municipal.common.utils;

public class ByteUtil {
	private static final char[] HEX_CHARS = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B',
			'C', 'D', 'E', 'F' };

	public static byte int3(final int x) {
		return (byte) (x >> 24);
	}

	public static byte int2(final int x) {
		return (byte) (x >> 16);
	}

	public static byte int1(final int x) {
		return (byte) (x >> 8);
	}

	public static byte int0(final int x) {
		return (byte) (x);
	}

	public static String toHexString(byte[] bytes) {
		char[] chars = new char[bytes.length * 2];
		int i = 0;
		for (byte b : bytes) {
			chars[i++] = HEX_CHARS[b >> 4 & 0xF];
			chars[i++] = HEX_CHARS[b & 0xF];
		}
		return new String(chars);
	}
}
